Wire Stop button to cancel blocked firmware sweeps

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Stop handler now calls cancel_operation() on the device bridge,
which sets a threading.Event that interrupts the 2s-timeout serial
read loop in send_with_timeout(). InterruptedError is caught
separately to prevent falling back to software sweep on cancel.

disconnect() uses acquire(timeout=5) with force-close fallback
instead of blocking lock acquisition — prevents deadlock when a
stuck worker holds the serial lock during shutdown.

Add 3 Textual async tests (pytest-asyncio) to verify Stop behavior:
firmware sweep stop, software sweep stop, and sweep restart.

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This commit is contained in:

Ryan Malloy 2026-02-14 17:12:11 -07:00

parent 972c26b22f

commit e7e71c47d7

5 changed files with 204 additions and 2 deletions

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